Apparatus for use in blood transfusion, intravenous medication and the like



a March 1, 1932.

N. T. OWEN 4 1,848,024

APPARATUS FOR USE IN BLOOD TRANSFUSION, INTRAVENOUS MEDICATION, AND THE LIKE Filed Nov. 23, 1931 2 SheetsShet 1 V V J7 i 42 {J6 35 3W *0!- rowen,

N. T. OWEN March 1, 1932.

APPARATUS FOR USE IN BLOOD TRANSFUSION, INTR'AVENOUS MEDICATION, AND THE LIKE Filed Nov. 23, 1951 2 Sheets-Sheet 2 amen E011 JV? T Owen,

claims.

their operative positions;

Patented Mar. 1, 1932 UNITED sTATss PATENT oFF IcEM nonnis r. ownn, or RAPID- CITY, sou'rn. mix'ron APPARATUS son usn m stoop 'rnANs usIoN, ma mvimousrmnmcmrron Application filed November 23, 1931. Serial in. 576,910 I f g in bloodtransfusion, intravenous medication and the like and has for one of its objects'to provide a device of this character which will be simple in construction, 'comparativelyinexpensive tomanufacture 'and. mor'ef efficient injus'e than those which have been heretofore p p' A '2 1 Vith the above and other objects inview which will appear as the description .pr'o' ceeds the invention consists in thenovel details of" construction and combinations of parts more fully hereinafter described and particularly pointed out in the appended Referring inore particularly to the accompanying drawings forming a part of this specification in. which like reference characters designate like parts in all th e views Figure 1 isa side elevationalview of an apparatusconstructed in accordance with the present invention, the parts being shown: in

Figure2 is 'a similar View as seen from the opposite side ofthe machine, the compressing member in this instancehowever being shown in theelevated position to which it is moved for thepurpose of inserting or removingthe deformablefluid conducting tube;

Figure 3 is a top plan view of the parts as shownin Figure 2;

Figure l is a transverse vertical sectional view taken approximately on the plane indicated by the-line 4-4 of Figure 1; and

Figure 5 is a fragmentary sectional elevational View illustrating the registering mechanism, the means for actuating the same, and for locking the compressing member against retrograde movement.

Referring more particularly to the said drawings 10 indicates a suitable base from which rises the upright standard 11' provided-with a vertical slot 12 in which is slidably-mounted a block 13 receiving one end of the horizontally disposed stud 14: on which is rotatably journalled a disk or wheel memb'er15. The. said member 15 is provided with a suitable handle 16 by meansof which the member may be manually rotated and it further carries a plurality of compressor 21 which is or fina y of rubb r conduit '21,whiolimayicoiivenientlytakethe form of a rubber tubeJ-lThesaid tube s pro- .rolls' i7 p'un'ianed upon pins 1 or shafts 31's,

as will be'zclear'from the drawings.

Mounted pen-the base 10 immediately below the rotatable member 15 'is af s ap'l9 having the iip rdly enta g} 3 1 .29

h j ab d b zfsupp rt ng 'of the arms"20 ar slotted or re ssed "as at 22 for the 'f reeireptioniofaliefofiriiable portion of. the tube between members, 24

will be under tensionas'indicatedin-broken lines in Figure 2. Each end of the tube' 23 may be provided with ai'suitable hollow needle 25 ,of well"kno wn form for injection into the veins of a patient, and-of the donor in case of blood transfusion.

The traveling compressor member 15 together with itspresse'r elements 1' Z normally occupies the position shown in Figure 1 dur.- ing operation but for thepui'poseof removal and replacement of ti1be;2 3 it is adapted to be elevated .to .the position ,-shown in run lines in Figure 2, This is accomplished through manually lifting the' n'ien iber 15;, which owing .to its slidable mounting by means of the block 13- in the slot 12, permits of such raising movement. In order to main tain the parts in their elevated positions the standard 11 ispreferably provided with a transverse bore 26 in which is mounted a ball or other detent member 27, normally pressed against the surface of the block 13 by a spring 28, the pressure of which may be adjusted by the threaded plug 29, as will be readily understood. The block 13 is provided with a depression or recess 30 into which the ball 26 may snap when, the parts reach the positions shown in full lines in Figure 2, whereby the member 15 will be held in its elevated position.

A coil spring 31 is interposed between the top of the block 13 and a slidable follower 32, also mounted in the slot 12 for the purposes of providing a yielding downward pressure upon the block 13, which pressure will maintain the comp-resser elements 17 in constant operative contact with the conduit 23' when the parts are in their normal: operative f positions shown in Figures 1 and 4. An adjustinent' screw-33 is threaded into abridge member 34 which spans the top of aie'saind: ard 11 and its lower endbears again s t the follower 32, thereby providing a ready'm'eaiis' for. v,varying the, pressure; exerted" by ,the

spring 31 and the 'consequent'pressure exerted by m res elements :17 upon the. conduit 23, as. willvbe readily understood, The slid- ,a'ble mounting of, the, traveling compression i bnduitha as above stated preferably 1 takes the form of a, rubber tube and itii spreferred to employ a vtube,having. relatively thin'walls, the thickness thereofbeing. such that'thetube will collapse under external atmospheric pressure in theevent of cloggin' 6f the sup-ply side of the apparatus. 1, Suc

rela ses iiidil'zated at 23 at the left hand side of Figur'ei 1 and serves asa vi'sible'indicatioii that the apparatus is, not functioning P' P fly-H 1' t Y a In the transfusion of blood','a"s well asin intravenous medication, it is ofcourse. desirable to-know the amount of fluid which has passed through 'themachine and for this purpose there is provided in connection with i the present device a suitable mechanism 35 which as here shown comprises a well known form of registering counter adapted to be actuated through oscillating movements or" its shaft 36, see Figs. 2, 3 and 5. Thesaid shaft is provided at one end with a suitable knob 37 by means ofwhich the device may be manually set-to zero while the opposite end of the shaft carries arm 38 whichnormial- 1y occupies substantially the position shown in Figures 2 and 5 under the influence of a spring or other similar device contained withinthe counter 35. The said arm 38 is disposed in the path of travel of a trip element 39 carried by the traveling compressing member 15, so that at each revolution of the said member the element- 39 will contact with and move the arm 38 in a clockwise direction as viewed in Figure 5, thereby moving the counter-shaft 36 a predetermined distance and causing registration by the counting extension 40 maybe en aged by the element ment of the member 15 with a consequent rei-vers'al of'flow of blood within the conduit be prevented. The counting 1 nechanism 35 here illustrated prtivi'des' an effectivemeans for accomplishing this, since its construction i s suchthat the movement of its arm 38 in a COuhteIClOCkW1% direction, as viewed in igure .5,, is positively stopped when it reaches the position shown infull linesinthe said figure. It thus results that although the element 39 may move the arm 38 in vaclockw r f en to pe hesem when ey-' traveling, miemberf 1,5 rotated the P -29 id 9% ii l esaid memberia be moved in a reverse direction .theelement; 39 will engage the arin 33and since" reverse movement of the latter is $2 limited, it will act as, an effective stoptolimit r nentibe'r v n 1 lt may however be desirable at some time to permit such retrograde movemennas'for instance during preliminary operations; 'of

blood transfusion, during cleaning or; sterilthe. retrograde movement of a compressing Marian of'the' apparatus or tiibe, aneinsmne instances in i connection, with intravenous medication- For jthe purposej'of rendering 1 jin fie veth tan me nism. ju t e' 'iibs the rm 8isr qv e lw fi anaemia-4Q, and p to movements dett di ine position shown in Figuref'5 wherethe-said 451' of a; manuallyopera le slide 42 mounted uponthebase 10, I Obviously when the slidmember 42 is moved from its full line to'it's' dott'ediline position shown in Figure 5, its portionfilwillengage over the extension 40 of lever'38 and serve to hold thelatter in the dotted line positiomwhereby itfis clear of themember39 so that the rotating member together with. its compression elements 1 l'Z may be freelyrotated in either direction. Of course during such operation, the counting mechanism 35 willinot be actuated.

. The operation of the machine willbe immediately apparent to those skilled "in the 12 3 art, it being understood thatin blood transfusion, =for example, after the left" hand needle (Fig-. 1) has been =introduced'into the vein of the donor, and the member 15 given a few turns by means of its handle .16

to clear the tube 23 of air,the right hand needle 25 may be injected into the vein of the patient, whereupon further rotation ofthe member 15 will cause the rollers 17 to produce traveling deformation of the tube, forcing 5 the blood-.therethrough in the well known manner p a 4 Blood of course is a highly coagulable substance, especially when n contact with the air, but such contact is wholly avoided with the present apparatus, thereby eliminating the injection of clots into the-veins of the patient, with. possible fatal results. Further- 1nore, the apparatus has no complicated valves requiring exceptionally careful cleaning. and sterilization in order to preyent thegpossibility of clots remaining in ,them from previous operations. Thepresent tubes 23 and needles 25 are the only parts requiring cleaning, andthey present no particular difliculty. In fact the tubes 23 are so relativelyinexpensive that they may, be discarded after each operation, if necessary. v j

. The walls of the tubes 23 being quite thin, as above explained,prohibits the useof clamps to hold the tubes; place,- as these would collapse or constrict the tubes. .However, the projections 24 formed on their outer. surfaces have been foundflin actual practicetoform with the slotted. arms:20 an, effective means for positioning the tubes. The latter are freely-receivable in the slots 22 ofthe arms without constriction, and the enga ement of the members 24 with the surfaces, 0 the arms prevents longitudinal. creeping of the tubes under the action of the trave lingrolls 17.

H ,VVhileone form of the invention has been illustrated and described it is obvious that those skilled in the art may vary the details of construction as well as the precise arrangement of parts without departing from the spirit of the invention, and therefore it is not wished to be limited to the above disclosure except as may be required by the claims.

lVhat I claim is:

1. In a blood transfusion apparatus and the like having a support, a deformable conduit in juxtaposition with said support, and means movable along said conduit to compress the same against said support and thereby produce traveling deformation of the conduit, the combination of means for yieldingly mounting said compressing means relative to said conduit.

2. In a blood transfusion apparatus and the like having a support, a deformable conduit in juxtaposition with said support, and means movable along said conduit to compress the same against said support and thereby produce traveling deformation of the conduit, the combination of means for mounting said compressing means for rectilinear movement toward and from said support.

3. In blood transfusion apparatus and the like having a support, a deformable conduit in juxtaposition with said support, and a traveling member provided with means movable along said conduit to compress the same against said support and thereby produce traveling deformation of the conduit, the

combination of means for yieldingly=rhounting saidtraveling member for substantially vertical movementtoward :and from said support; and means for retaining said'member elevated when moved away. from. said support. 1 i j 4. In blood transfusion-apparatus and the like having a support, 0;! deformable conduit in (juxtaposition with said support, and a traveling member provided with. presserzele ments movable? along! said -conduit to c'ompress the same against .said' support and thereby produce traveling deformation of the; conduit, the combination: of means for mounting said traveling-:membertifor free movement toward and; from; said. support; and adjustable resilient :means' foravarying the pressure exerted bysaid member and-its presser ielements upon said-conduits 1 f In blood transfusion-apparatus and-th like having a support, a deformablero'onduit in: 'j uxtapositionwith said: supportgranda traveling memberprovided withmean's movable along said .conduitto coiinpressthesame against said sup port. a'n'dthereby i produce traveling- I deformationo of :the conduit, the combination- ;of a. slotted: standard adj acent said support; a'Tblock-slida'bly mounted'in the :'slot in said: standard? for mounting said travelingm'ember, whereby itmay -move freely toward and from-said support; a spring normally urg-in'g said bloclr andimembertoward said support; and ardetent for retaining said block and member away from said support -agains't=t-he-action .ofusaid-springm .0. I

5116'. 'In blood" transfiision apparatus and the l'ikehaviing a support,'= a deformable conduit in" uxtaposition with'f'said "support, and means movable along. said conduit to compress; the same against said 3 support and thereby p'roduce .tr'a'veling deformation of the conduit, the combination of means for li'miting'retrograde movement of said compressing means to' 'prevent'reverse' flow of fluid 'in'saidconduituw p Y 1 7 Inblood transfusion apparatus and the like having a support, a deformable conduit 'in juxtaposition with said"support,'- and 'a traveling member provided with means movable along said conduit to compress the same against said's'uppor t' and thereby produce traveling deformation of the conduit, the combination of a stop member positioned in the path of travel 'of a portion of s aid'travcling member,-said stop member being yieldable to permit free passage of said'traveling member in one direction, but engage able by said traveling member portion to limit movement thereof in the opposite direction to" prevent reverse flow of fluid in said conduit. i

8. In blood transfusion apparatus and the like having a support, a deformable conduit in juxtaposition with said support, and a traveling member provided with means-movable along said conduit fol-compress the' same against saidv "support 'and thereby produce traveling deformation of the oonduit,'the combinationof-an arm normally in the path of and yieldable to a portion of said traveling member as it moves in' one direction, said arm being 'engageable by said traveling member-portion'upon movement-in the'opposite direction to limit such retrograde mover'nent and prevent reverse flow of fluid insaid'c'onduit; :and meai1s for holdingsaid arni out' of v -thepath of said traveling member: to'p'ermit the latterito move freelyin either direction. 9. Inbloodltransfus'ion apparatusand the like having a support, a deformable 'condu'it iiniju-xtapo'sition wit'h' said support, and a traveling member providedwith means movable alongsaid conduit-to: compress the same against said: support and thereby produce travelingdeformation of; the 'conduit, th'e combination TOf an :arm' normally in the path of and yieldable to a-porti'onof said traveL I 'ing-member'as it moves in'one directionysaid arm being engageable by said'traveling mem- *ber portion upon smovementiin the opposite direction 'to' limit such retnograde movement and'zpreven-t reverse .fiow of fillld'lll sald conduit; =an-extens1on carr1ed by said arm; and

'meansopenable at will to engagesaid exten'- sion and hold said: arm out of the path; of said ltraveling mexnberutopermit thefi'latte'r to move freely inteitherdirection; :1" I -'1 10. :In? :blood transfusion apparatus and the like havingasupport, and moviablecompressing-means; disposed in co-operative relation to said:support; a deformable fluid-conthe like having a support, a deformable conduit in juxtaposition with said support, and

means movable .alon'g said conduit to'compress the same against said support and thereby producetraveling deformation of the conduit, the combination of spaced members for positioning said conduit in-co-'operative relation to said support and compressing means, said members having apertures for freely receiving said conduit without ,con-

striction; and projections carried by'the conduit engaging said'members' to prevent longitudinal creeping of the conduit,

14.- In bloodtransfusion apparatus the i like having a support, ajdefor-mable resilient conduit in juxtaposition with saidsupport,

and 'means" movable said. conduit to compress the same againsti'said "support and thereby'prod-u'ce traveling deformation of the conduit, the combination of spacednieinbers for positioning said "conduit in co-operative relation 'to" said-'lsupport and'jcompressing means, said members having apertures for freely receiving' said conduit without 'constriction; and projections carried bylthe conduit engaging said inembersftoprevent longitu'dinal creeping of the conduit, said project'ions being so positio'ned upon sai d conduit asto cause the portion of'the conduit lying between 'said spaced members to be held under tension. J; In testimony where f'I 'afiix my signature.

" INQRRISYT- QWEN- ductingconduitvinterposed betWeensaidsupport and compressing means, said" conduit being collapsible under external atmospheric duit in juxtaposition with said support, and

means movable along said conduit to c0mpress the same against said support and thereby produce traveling deformation of the conduit, the combination of a pair of spaced members for positioning said conduit 1n cooperative relation to said support and compressing means; and means carried by the conduit engaging said members to prevent longitudinal creeping of the conduit.

13. In-blood transfusion apparatus and 

